Sink or hydraulic trap



(No Model.)

J. I. W ITHEY.

SINK 0R HYDRAULIC TRAP.

Patented June 6 1882;

i m J UNITED STATES PATENT OFFICE.

JOHN F. WITHEY, or LYNN, MASSACHUSETTS.

SINK OR HYDRAULIC TRAP.

SPECIFICATION forming part of Letters Patent No. 259,256, dated June 6, 1882.

Application filed March 27, 1882. (No model.)

To all whom it may concern:

Be it known that I, JOHN F; WITHEY, of Lynn, in .the county of Essex, of the State of Massachusetts, have invented a new and useful Improvement in Sink or Hydraulic Traps and I do hereby declare the same to be described in the following specification and represented in the accompanying drawings, of which- Figure 1 is a side elevation, and Fig. 2 a vertical and longitudinal section, of atrap embodying my invention, the nature of which'is defined in the claims hereinafter presented.

In making my trap the objects 1 have sought to attain have been to produce one capableot' being easily cleansed of any deposits, and'also one not liable to be burst or cracked by water while freezing in it. To this end I compose the body of the trap of three tubes, A B 0, arranged parallel, or about so, to each other, and having tubular connections D E,'or such and intervening metallic joinings, a a, the connection D being at the lower part of the tubes A and B, while the tubular connection E is at the upper parts of the tubes B and O,all'being as represented. be cast in one piece,of metal, or made ofother proper material. The middle tube, B, has re movable caps F G, screwed or otherwise propcrly fixed water-tight on its upper and lower ends. The tube A is also similarly capped at its lower end, as shown at G, the tube 0 being also so capped at its upper end, as denoted at F. Within each of the tubes A and B, and extended up from the cap G or G thereof, is an india-rubber tube, H, which is closed at its upper end, and at its lower end has an opening, a, through the cap.

With a trap thus made and so applied to a sink that Water when escaping therefrom shall flow into the tube A at its upper end, such water will fill the two tubes A and B up to the bore of the connection E, the surplus The whole of such body may water running through the latter into and down the tube 0. The water in the tubes A and B will serve to prevent sewer-gas from passing through the trap into the sink. In case of the water in the tubes A and B be.

coming frozen, the elastic tubes E Lwill contract under the expansion of the water, and thereby operate to prevent cracking or bursting of the trap in the meantime by the water in freezing. As the elastic pipes may contract, air will be expelled from them, they readily expanding when the ice around them may become melted.

Wheneverit may be desirable to cleanse the interior of the trap of any deposits in either of its tubes such can be readily efi'ected by suitable means after removing from such tube its cap or caps.

\Vhatl claim as my invention is as fol lows, viz: i

1. The three tubes A, B, and 0, arranged with and joined by the tubular connections D E, as described, and having removable caps applied to them, (the said tubes,) as set forth.

2. The three tubes A, B, and (3, arranged with and joined by the intervening joinings, a a, and tubular connectionsD E, as described, and having removable caps applied to them, (the said tubes,) as set forth.

3. The three tubes A, B, and (3, arranged with andjoined by the tubular connections D E, as described, and provided with removable caps, and with elastic tubes H, closed at their upper ends and extending from the lowermost JOHN F. WrrHEY.

Witnesses BENJ. A. WARD,

FRANK L. DAMON. 

